Description: In 1971 the firm of Crysler & Lathem, consulting engineers, was retained by the Credit Valley Conservation Authority to prepare a plan for the development of the Mississauga waterfront sector of the Metropolitan Toronto Planning Area. Rattray Marsh was one of the areas they covered. The marsh is a protected natural conservation area, accessible from Meadow Wood Road, north of Orr Road, or through Jack Darling Memorial Park. It was originally called Cranberry Marsh in Wilmot’s Survey. It was bought by Major Rattray in 1945. After his death in 1959 various groups fought to save the marsh as a conservation area.